/Engine/Source/Runtime/Core/Public/Misc/ObjectThumbnail.h
Compresses an image
true if the image was compressed successfully, otherwise false if an error occurred
bool CompressImage ( const [TArray](API\Runtime\Core\Containers\TArray)< uint8 > & InUncompressedData, const int32 InWidth, const int32 InHeight, [TArray](API\Runtime\Core\Containers\TArray)< uint8 > & OutCompressedData )